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Stephanie Parsons
Physics
In the middle of the Indian Ocean, the tsunami referred to in the passage was a train of pulses approximating a sinusoidal wave with speed 200 m/s and wavelength 150 km. What was the approximate period of these pulses?
A. 1 min
B. 3 min
C. 5 min
D. 15 min
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Roach
Physics
A lake that stores water for human use is called
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Ana Lewis
Physics
The distance from earth to mars ranges between 780,000,000 km and 380,000,000 km depending on the time of the year. The speed of like is 300,000 km/s. Calculate the minimum time it takes for data transmitted by the Mars Surveyor to reach earth.
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Reina
Physics
Which measure of an earthquake depends on how close you are to the focus?
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Justice Parrish
Physics
I had a problem solving for part b of this question: objects with masses of 110 kg and a 410 kg are separated by 0.380 m. (a) find the net gravitational force exerted by these objects on a 30.0-kg object placed midway between them. (b) at what position (other than infinitely remote ones) can the 30.0-kg object be placed so as to experience a net force of zero?
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Blayne
Physics
A spring with spring constant 15.5 N/m hangs from the ceiling. A ball is suspended from the spring and allowed to come to rest. It is then pulled down 7.00 cm and released. The ball makes 37.0 oscillations in 22.0 seconds. 1) What is its the mass of the ball? 2) What is its maximum speed?
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Emanuel Cain
Physics
State the problom how will the blank of the solvent affect blank?
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Kian Orozco
Physics
If 98 J of heat are added to a pure gold coin with a mass of 11 g, what is its temperature change? Specific heat capacity of gold is 0.128 J/g∘C.
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Landin Bean
Physics
Why should a spacecraft be air tight?
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Jaylon Clayton
Physics
How does the density of the Earth's core compare to the other layers of the Earth?
A) The core is the densest layer.
B) The core is the least dense layer.
C) The core is only less dense than the crust.
D) The core is only less dense than the mantle.
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Milagros
Physics
a car is slowed because the air it is moving through pushes past against it. this contact force is known as air
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Trace Frederick
Physics
Imagine that an uncharged pith ball is brought into the electrostatic field of a charged rod. The side of the pith ball closest to the negatively charged end of the rod will
A. not experience any induced charge and remain neutral.
B. be given a positive charge produced by the movement of electrons to the other end of the ball.
C. be given a negative charge produced by the movement of electrons from the rod.
D. be given a negative charge produced by the movement of electrons from the other end of the ball.
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Jaxon Kemp
Physics
An astronaut takes a book onto the space shuttle. An identical book remains on earth. Which statements about the pull of earth's gravity on the books is true?
A. The pull of earth's gravity is the same on both books because they are identical.
B. Earth's gravity has a stronger pull on the book when it is on earth than when it is in space.
C. Earth's gravity has a weaker pull on the book when it is on earth than when it is in space.
D. The pull of earth's gravity is the same on both books because they have the same mass.
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Griffin Chavez
Physics
What is the proper order of the hierarchy of organization starting with molecules
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Lili
Physics
What does the term "series" mean
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